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dashboard: per-container journald viewer

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new GET /api/journal/{name}?unit=&lines= shells out journalctl -M
<container> -b --no-pager --output=short-iso --lines=<N> (cap 5000).
optional unit filter, restricted to hive-ag3nt.service /
hive-m1nd.service so the shell-out can't be coerced into reading
unrelated units. validates the container name against the live list
before invoking journalctl.

frontend renders a collapsed '↳ logs · <container>' details block
on each container row. expanding triggers a lazy fetch; refresh
button re-fetches; unit dropdown switches between the harness
service (default) and the full machine journal. output sits in a
24em-tall monospace pre, auto-scrolled to the bottom on fresh
fetch.

hive-c0re's systemd unit already runs as root, so journalctl has
the access it needs.
This commit is contained in:
müde 2026-05-15 20:42:56 +02:00
parent 79a46f359a
commit 0385d96bf3
4 changed files with 173 additions and 11 deletions
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47
hive-c0re/assets/dashboard.css
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@ -143,6 +143,53 @@ a:hover {
opacity: 0.85;
}
.container-row.tombstone .name { color: var(--muted); }
/* Per-container journald viewer: collapsed by default, fetches
lazily on expand. The output is in monospace inside a bordered
<pre>; controls (unit select + refresh) sit above. */
.journal {
margin-top: 0.5em;
font-size: 0.85em;
}
.journal > summary {
cursor: pointer;
color: var(--muted);
letter-spacing: 0.05em;
}
.journal > summary:hover { color: var(--cyan); }
.journal .journal-body {
margin-top: 0.4em;
padding-top: 0.4em;
border-top: 1px dashed var(--border);
}
.journal-controls {
display: flex;
gap: 0.5em;
margin-bottom: 0.4em;
align-items: center;
}
.journal-unit {
font-family: inherit;
font-size: 0.9em;
background: var(--bg-elev);
color: var(--fg);
border: 1px solid var(--border);
padding: 0.2em 0.4em;
}
.journal-refresh { font-size: 0.75em; padding: 0.15em 0.5em; }
.journal-output {
margin: 0;
background: #11111b;
color: var(--fg);
border: 1px solid var(--purple-dim);
padding: 0.5em 0.7em;
max-height: 24em;
overflow: auto;
font-size: 0.85em;
line-height: 1.4;
white-space: pre;
word-break: normal;
}
.pending-state {
color: var(--amber);
font-size: 0.85em;